package com.lay.reggie.handler;

import com.lay.reggie.common.R;
import com.lay.reggie.exception.CustomException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 *  全局的异常 捕获
 */

@ResponseBody   //返回 JSON 数据
@Slf4j
@ControllerAdvice(annotations = {RestController.class, Controller.class})  //拦截加上这两个 注解的处理器
public class GlobalExceptionHandler {


    /**
     * 异常处理方法
     * @return
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex){
        //log.error(ex.getMessage());  //打印错误信息

        if(ex.getMessage().contains("Duplicate entry")){
            String[] split = ex.getMessage().split(" ");
            String msg = split[2] + "已存在";
            return R.error(msg);
        }

        return R.error("未知错误");
    }


    /**
     *  处理自定义的异常
     * @param ex
     * @return
     */
    @ExceptionHandler(CustomException.class)
    public R<String> exceptionHandler(CustomException ex){
        log.error(ex.getMessage());  //打印错误信息
        return R.error(ex.getMessage());
    }

}
